allanjude [Thu, 31 Dec 2015 20:00:53 +0000 (20:00 +0000)]
Introduce the ZFS Boot Environments menu to the loader menu
If the system was booted with ZFS, a new menu item (#7) appears
It contains an autogenerated list of ZFS Boot Environments
This allows the user to switch to an alternate root file system
Use Cases:
- Revert a failed upgrade
- Concurrently run different versions of FreeBSD with common home directory
- Easier integration with the sysadmin/beadm utility
Requested by: many
Reviewed by: dteske
MFC after: 10 days
Relnotes: yes
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D3167
dteske [Thu, 31 Dec 2015 19:37:14 +0000 (19:37 +0000)]
Remove supposition comment that code would better live elsewhere.
Thinking this through, and looking at process_assignment, I believe
moving the code would be wrong considering that set_conf_files is
called in one condition while set_nextboot_conf is guarded by a
different condition of having nextboot_enable="YES". So these must
stay separated and not combined.
dteske [Thu, 31 Dec 2015 19:00:45 +0000 (19:00 +0000)]
Remove debugging messages. NB: SVN r187143 reads:
comment out some debugging messages that slipped in by mistake
(removing them 7 years after they have been commented out)
ian [Thu, 31 Dec 2015 18:29:24 +0000 (18:29 +0000)]
When building libstand for arm, don't emit instructions that require
relocation fixups unsupported by the self_reloc() code, and don't optimize
memcpy/memset using floating point registers, because in a standalone
environment nothing has initialized the fpu hardware.
jilles [Thu, 31 Dec 2015 17:51:15 +0000 (17:51 +0000)]
sh: Perform IFS splitting during the first expansion phases.
This simplifies the code and should be faster in some cases.
Side effect: the order of operations is different so that the value of IFS
used when IFS is modified during expansion (${IFS:=...}, ${IFS=...} or
$((...IFS=...))) may be different. Note that this order is highly unportable
between shells.
hselasky [Thu, 31 Dec 2015 12:30:19 +0000 (12:30 +0000)]
Minor LinuxKPI code cleanup:
- Declare some static functions in linux_compat.c instead if inside
various header files.
- Prefix FreeBSD local functions in the LinuxKPI with "linux_" to
avoid symbol name conflicts in the future and to make debugging
easier.
- Make the "struct kobj_ktype" declaractions constant to shave off a
few bytes from the data segment.
melifaro [Thu, 31 Dec 2015 05:03:27 +0000 (05:03 +0000)]
Implement interface link header precomputation API.
Add if_requestencap() interface method which is capable of calculating
various link headers for given interface. Right now there is support
for INET/INET6/ARP llheader calculation (IFENCAP_LL type request).
Other types are planned to support more complex calculation
(L2 multipath lagg nexthops, tunnel encap nexthops, etc..).
Reshape 'struct route' to be able to pass additional data (with is length)
to prepend to mbuf.
These two changes permits routing code to pass pre-calculated nexthop data
(like L2 header for route w/gateway) down to the stack eliminating the
need for other lookups. It also brings us closer to more complex scenarios
like transparently handling MPLS nexthops and tunnel interfaces.
Last, but not least, it removes layering violation introduced by flowtable
code (ro_lle) and simplifies handling of existing if_output consumers.
ARP/ND changes:
Make arp/ndp stack pre-calculate link header upon installing/updating lle
record. Interface link address change are handled by re-calculating
headers for all lles based on if_lladdr event. After these changes,
arpresolve()/nd6_resolve() returns full pre-calculated header for
supported interfaces thus simplifying if_output().
Move these lookups to separate ether_resolve_addr() function which ether
returs error or fully-prepared link header. Add <arp|nd6_>resolve_addr()
compat versions to return link addresses instead of pre-calculated data.
BPF changes:
Raw bpf writes occupied _two_ cases: AF_UNSPEC and pseudo_AF_HDRCMPLT.
Despite the naming, both of there have ther header "complete". The only
difference is that interface source mac has to be filled by OS for
AF_UNSPEC (controlled via BIOCGHDRCMPLT). This logic has to stay inside
BPF and not pollute if_output() routines. Convert BPF to pass prepend data
via new 'struct route' mechanism. Note that it does not change
non-optimized if_output(): ro_prepend handling is purely optional.
Side note: hackish pseudo_AF_HDRCMPLT is supported for ethernet and FDDI.
It is not needed for ethernet anymore. The only remaining FDDI user is
dev/pdq mostly untouched since 2007. FDDI support was eliminated from
OpenBSD in 2013 (sys/net/if_fddisubr.c rev 1.65).
Flowtable changes:
Flowtable violates layering by saving (and not correctly managing)
rtes/lles. Instead of passing lle pointer, pass pointer to pre-calculated
header data from that lle.
ian [Wed, 30 Dec 2015 23:04:08 +0000 (23:04 +0000)]
Add the MOVT/MOVW types to the list of relocs which do not generate .plt
entries. This fixes the segfaults in arm userland code compiled with
-march= or -mcpu= values that allow the compiler to generate movw/movt
sequences to load 32-bit constants.
kib [Wed, 30 Dec 2015 19:49:22 +0000 (19:49 +0000)]
Force nullfs vnode reclaim after unlinking, to potentially unlink
lower vnode. Otherwise, reference to the lower vnode from the upper
one prevents final unlink.
PR: 178238
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
andrew [Wed, 30 Dec 2015 17:36:34 +0000 (17:36 +0000)]
Decode and print the ID_AA64* registers on boot. These registers hold
information on what the core supports. In most cases these will be
identical across most CPUs in the SoC, however there may be the case where,
with a big.LITTLE setup they may differ. In this case we print the
decoded data on all CPUs.
bz [Wed, 30 Dec 2015 17:10:03 +0000 (17:10 +0000)]
This code is not in modules that need KPI stability so no need to use
the wrapper functions as used in r252511. We can directly use the
locking macros.
dim [Wed, 30 Dec 2015 16:14:30 +0000 (16:14 +0000)]
Drop the clang patch which adds recognition of 'CC' suffixes as aliases
for --driver-mode=g++, since this was never upstreamed. For backwards
compatibility, add a wrapper shell script.
marius [Wed, 30 Dec 2015 13:49:20 +0000 (13:49 +0000)]
- (Ab)use udivx for dividing the u_int pc_cpuid when implementing
CPU_ISSET(), CPU_SET etc. in sparc64 asm. This approach has the
benefit of not clobbering %y, allowing to revert r222827 and
partially r222828.
- In r222828, CATR() already was changed to use the equivalent of
PCPU_GET(cpuid) instead of the MD module ID for KTR_CPU, so
belatedly also catch up with the C side of ktr(9). Originally,
in r203838 CATR() was moved away from directly reading the
module ID or equivalent as that became impractical with other
CPU types than USI/II supported. With r222828 in place, per-CPU
data generally is set up soon enough, though, that employing
PCPU things in ktr(9) also for use during early stages works.
- Unfortunately, an exception to the latter is the ktr(9) use
in pmap_bootstrap(), which actually is run so early that even
checking for bootverbose being set via the loader doesn't work.
Consequently, replace the ktr(9) use in pmap_bootstrap() with
OF_printf(9) and put it under #ifdef DIAGNOSTIC instead.
jhibbits [Wed, 30 Dec 2015 03:43:25 +0000 (03:43 +0000)]
Add platform support for QorIQ SoCs.
This includes the following changes:
* SMP kickoff for QorIQ (tested on P5020)
* Errata fixes for some silicon revisions
* Enables L2 (and L3 if available) caches
Obtained from: Semihalf
Sponsored by: Alex Perez/Inertial Computing
jhibbits [Wed, 30 Dec 2015 02:23:14 +0000 (02:23 +0000)]
Rewrite tid_flush() in C.
There's no need for it to be in asm. Also, by writing in C, and marking it
static in pmap.c, it saves a branch to the function itself, as it's only used in
one location. The generated asm is virtually identical to the handwritten code.
dteske [Wed, 30 Dec 2015 02:15:12 +0000 (02:15 +0000)]
Fix stack leak introduced by SVN r97201 (nextboot_conf support).
Fix erroneous error path in error messages when processing boot_conf.
Fixup stack comments for functions introduced by SVN r97201.
Remove a questioning stack comment introduced by SVN r186789.
NB: Comment removed because strdup usage here is correct/not a leak.
jhb [Tue, 29 Dec 2015 23:25:26 +0000 (23:25 +0000)]
Add ptrace(2) reporting for LWP events.
Add two new LWPINFO flags: PL_FLAG_BORN and PL_FLAG_EXITED for reporting
thread creation and destruction. Newly created threads will stop to report
PL_FLAG_BORN before returning to userland and exiting threads will stop to
report PL_FLAG_EXIT before exiting completely. Both of these events are
only enabled and reported if PT_LWP_EVENTS is enabled on a process.
ian [Tue, 29 Dec 2015 22:18:35 +0000 (22:18 +0000)]
Bring some of the recent locore-v4.S improvements into locore-V6...
- Map all 4GB as VA=PA so that args passed in from a bootloader can
be accessed regardless of where they are.
- Figure out the kernel load address by directly masking the PC rather
then by doing pc-relative math on the _start symbol.
- For EARLY_PRINTF support, map device memory as uncacheable (no-op for
ARM_NEW_PMAP because all TEX types resolve to uncacheable).
kib [Tue, 29 Dec 2015 22:14:21 +0000 (22:14 +0000)]
Add standard extended feature bit 6 from the Intel SDM rev. 57, which
indicates that data-pointer in the saved x87 FPU state is only updated
on FPU exceptions.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
ian [Tue, 29 Dec 2015 21:29:05 +0000 (21:29 +0000)]
Fix the error checking for the ubenv command. This moves the check for an
empty ldvar (which amounts to the varname string starting with '=') into
the if block that manipulates ldvar, which avoids later referencing ldvar
when it was never initialized.
marius [Tue, 29 Dec 2015 17:07:28 +0000 (17:07 +0000)]
- Add entries for the more prominent members of the Digi International
Neo series, which are based on Exar PCI chips.
- Mark some unused parameters as such.
- Fix style
theraven [Tue, 29 Dec 2015 16:29:42 +0000 (16:29 +0000)]
Improvements to BSD-licensed DTC.
- Added an expression parser so that expressions from headers are now working
- Fixed missing null terminators on cross references
- Disabled exceptions / RTTI in the build for smaller binaries
- Changed phandle order generation to be identical to GPL'd dtc
ian [Tue, 29 Dec 2015 15:23:03 +0000 (15:23 +0000)]
Correct the code for sign-extending a 16 bit value. As near as I can tell
this is effectively a no-op -- the addend term in MOVT/MOVW relocations
always seems to be zero. But this is correct and the old code wasn't.
delphij [Tue, 29 Dec 2015 08:19:43 +0000 (08:19 +0000)]
hyperv: vmbus: run non-blocking message handlers in vmbus_msg_swintr()
We'll remove the per-channel control_work_queue because it can't properly
do serialization of message handling, e.g., when there are 2 NIC devices,
vmbus_channel_on_offer() -> hv_queue_work_item() has a race condition:
for an SMP VM, vmbus_channel_process_offer() can run concurrently on
different CPUs and if the second NIC's
vmbus_channel_process_offer() -> hv_vmbus_child_device_register() runs
first, the second NIC's name will be hn0 and the first NIC's name will
be hn1!
We can fix the race condition by removing the per-channel control_work_queue
and run all the message handlers in the global
hv_vmbus_g_connection.work_queue -- we'll do this in the next patch.
With the coming next patch, we have to run the non-blocking handlers
directly in the kernel thread vmbus_msg_swintr(), because the special
handling of sub-channel: when a sub-channel (e.g., of the storvsc driver)
is received and being handled in vmbus_channel_on_offer() running on the
global hv_vmbus_g_connection.work_queue, vmbus_channel_process_offer()
invokes channel->sc_creation_callback, i.e., storvsc_handle_sc_creation,
and the callback will invoke hv_vmbus_channel_open() -> hv_vmbus_post_message
and expect a further reply from the host, but the handling of the further
messag can't be done because the current message's handling hasn't finished
yet; as result, hv_vmbus_channel_open() -> sema_timedwait() will time out
and th device can't work.
Also renamed the handler type from hv_pfn_channel_msg_handler to
vmbus_msg_handler: the 'pfn' and 'channel' in the old name make no sense.
Submitted by: Dexuan Cui <decui microsoft com>
Reviewed by: royger
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D4596
marius [Mon, 28 Dec 2015 20:24:08 +0000 (20:24 +0000)]
- Add an entry for the SIIG Cyber 2SP1 PCIe adapter, which is based
on an Oxford Semiconductor OX16PCI954 but uses only two ports and
a non-default clock rate.
- Fix style/whitespace
hselasky [Mon, 28 Dec 2015 18:50:18 +0000 (18:50 +0000)]
Add support for CQE zipping. CQE zipping reduces PCI overhead by
coalescing and zipping multiple CQEs into a single merged CQE. The
feature is enabled by default and can be disabled by a sysctl.
Implementing this feature mlx5_cqwq_pop() has been separated from
mlx5e_get_cqe().
wollman [Mon, 28 Dec 2015 18:29:47 +0000 (18:29 +0000)]
in6_if2idlen: treat bridge(4) interfaces like other Ethernet interfaces
bridge(4) interfaces have an if_type of IFT_BRIDGE, rather than
IFT_ETHER, even though they only support Ethernet-style links. This
caused in6_if2idlen to emit an "unknown link type (209)" warning to
the console every time it was called. Add IFT_BRIDGE to the case
statement in the appropriate place, indicating that it uses the same
IPv6 address format as other Ethernet-like interfaces.
hselasky [Mon, 28 Dec 2015 18:20:05 +0000 (18:20 +0000)]
Reduce memory consumption when allocating kobject strings in the
LinuxKPI. Compute string length before allocating memory instead of
using fixed size allocations. Make kobject_set_name_vargs() global
instead of inline to save some bytes when compiling.
araujo [Mon, 28 Dec 2015 05:48:22 +0000 (05:48 +0000)]
The sdp opens the database with PERM_SECURE mode and it is different than
dp that opens the database with PERM_INSECURE, so we need to check sdp->put
against sdp instead of use dp->put.
ngie [Mon, 28 Dec 2015 02:34:59 +0000 (02:34 +0000)]
- Remove unused but set ssize in shutdown_send_sigpipe
- Add #ifdef TEST_SEQ_PACKET_SOURCE_ADDRESS` for untestable code
because FreeBSD doesn't have a means to map source addresses for
SEQ_PACKET AF_UNIX sockets (paraphrased). Put pathname variable
under the #ifdef to mute another unused but set variable warning
ngie [Mon, 28 Dec 2015 02:18:22 +0000 (02:18 +0000)]
Fix style(9) a bit and ensure that error from initializing kqueue(2) is
sane
- Push the kqueue(2) initialization down so the errno will correspond with
the failure instead of potentially being stomped on by functions called
by `PLAIN_REQUIRE_KERNEL_MODULE`
- Delete trailing whitespace
- Add spaces between braces for conditional and control blocks (for/if)
- Use err/errx instead of perror+printf+exit/printf+exit.
- Remove braces for single-line conditionals
ngie [Mon, 28 Dec 2015 00:53:37 +0000 (00:53 +0000)]
- Explicitly initialize ch to 0
- Delete some spurious whitespace
- Use calloc instead of malloc in the last test to ensure that
sendspace is properly zero'ed out
imp [Sun, 27 Dec 2015 23:04:12 +0000 (23:04 +0000)]
Use a macro to create the names for the library path names. This will
allow later substitution at run time instead of compile time of the
environment variable name prefix.
imp [Sun, 27 Dec 2015 23:04:11 +0000 (23:04 +0000)]
The FILE structure has a mbstate_t in it. This structure needs to be
aligned on a int64_t boundary. However, when we allocate the array of
these structures, we use ALIGNBYTES which defaults to sizeof(int) on
arm, i386 and others. The i386 stuff can handle unaligned accesses
seemlessly. However, arm cannot. Take this into account when creating
the array of FILEs, and add some comments about why.
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